| Message ID | 1298893591-17636-5-git-send-email-aneesh@ti.com |
|---|---|
| State | New |
| Headers | show |
On Monday, February 28, 2011 5:16 PM, V, Aneesh wrote: > Provide a means by which u-boot/SPL can save parameters passed > to it by ROM code or the pre-loader. > > A new function 'save_boot_params' has been defined and a > default implentation provided. Please note that we do not have > a stack yet. So, any implementation of this function should > not use stack. > > Signed-off-by: Aneesh V <aneesh@ti.com> > --- This is an essential feature when there no x-loader in the picture. Thanks for posting a patch for this :) Regards, Vaibhav
diff --git a/arch/arm/cpu/armv7/cpu.c b/arch/arm/cpu/armv7/cpu.c index a01e0d6..54533fc 100644 --- a/arch/arm/cpu/armv7/cpu.c +++ b/arch/arm/cpu/armv7/cpu.c @@ -41,6 +41,13 @@ static void cache_flush(void); +void save_boot_params_default(u32 r0, u32 r1, u32 r2, u32 r3) +{ +} + +void save_boot_params(u32 r0, u32 r1, u32 r2, u32 r3) + __attribute__((weak, alias("save_boot_params_default"))); + int cleanup_before_linux(void) { unsigned int i; diff --git a/arch/arm/cpu/armv7/start.S b/arch/arm/cpu/armv7/start.S index cb4f92f..3618190 100644 --- a/arch/arm/cpu/armv7/start.S +++ b/arch/arm/cpu/armv7/start.S @@ -103,6 +103,7 @@ IRQ_STACK_START_IN: */ reset: + bl save_boot_params /* * set the cpu to SVC32 mode */
Provide a means by which u-boot/SPL can save parameters passed to it by ROM code or the pre-loader. A new function 'save_boot_params' has been defined and a default implentation provided. Please note that we do not have a stack yet. So, any implementation of this function should not use stack. Signed-off-by: Aneesh V <aneesh@ti.com> --- arch/arm/cpu/armv7/cpu.c | 7 +++++++ arch/arm/cpu/armv7/start.S | 1 + 2 files changed, 8 insertions(+), 0 deletions(-)